add custom string convertible conformance to OracleSQLError.ServerInfo

Package.resolved

@@ -32,8 +32,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-collections.git",
       "state" : {
-        "revision" : "9bf03ff58ce34478e66aaee630e491823326fd06",
-        "version" : "1.1.3"
+        "revision" : "671108c96644956dddcd89dd59c203dcdb36cec7",
+        "version" : "1.1.4"
       }
     },
     {
@@ -104,8 +104,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-system.git",
       "state" : {
-        "revision" : "d2ba781702a1d8285419c15ee62fd734a9437ff5",
-        "version" : "1.3.2"
+        "revision" : "c8a44d836fe7913603e246acab7c528c2e780168",
+        "version" : "1.4.0"
       }
     }
   ],

Sources/OracleNIO/OracleSQLError.swift

@@ -215,7 +215,7 @@ public struct OracleSQLError: Sendable, Error {
         }
     }
 
-    public struct ServerInfo: Sendable {
+    public struct ServerInfo: Sendable, CustomStringConvertible {
         let underlying: OracleBackendMessage.BackendError
 
         /// The error number/identifier.
@@ -244,6 +244,10 @@ public struct OracleSQLError: Sendable, Error {
         init(_ underlying: OracleBackendMessage.BackendError) {
             self.underlying = underlying
         }
+
+        public var description: String {
+            message?.trimmingCharacters(in: .whitespacesAndNewlines) ?? "ORA-\(number)"
+        }
     }
 
     public struct BatchError: Sendable {

Tests/OracleNIOTests/OracleSQLErrorTests.swift

@@ -0,0 +1,42 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the OracleNIO open source project
+//
+// Copyright (c) 2024 Timo Zacherl and the OracleNIO project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE for license information
+// See CONTRIBUTORS.md for the list of OracleNIO project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+#if compiler(>=6.0)
+    import Testing
+
+    @testable import OracleNIO
+
+    @Suite
+    struct OracleSQLErrorTests {
+        @Test
+        func serverInfoDescription() {
+            let errorWithMessage = OracleSQLError.ServerInfo(
+                .init(
+                    number: 1017,
+                    isWarning: false,
+                    message: "ORA-01017: invalid credential or not authorized; logon denied\n",
+                    batchErrors: []
+                ))
+            #expect(
+                String(describing: errorWithMessage) == "ORA-01017: invalid credential or not authorized; logon denied")
+            let errorWithoutMessage = OracleSQLError.ServerInfo(
+                .init(
+                    number: 1017,
+                    isWarning: false,
+                    batchErrors: []
+                ))
+            #expect(String(describing: errorWithoutMessage) == "ORA-1017")
+        }
+    }
+#endif